:root {
  --bg-color: #f6f8fa;
  --text-color: #1e293b;
  --muted-color: #475569;
  --card-bg: #ffffff;
  --primary-color: #3b82f6;
  --primary-dark: #1d4ed8;
  --accent-color: #f4b942;
  --border-color: #e2e8f0;
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
  --radius-lg: 16px;
  --radius-md: 8px;
  --tag-bg: #eff6ff;
  --tag-color: #2563eb;
  --font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
}

body.dark-mode {
  --bg-color: #0f172a;
  --text-color: #f8fafc;
  --muted-color: #cbd5e1;
  --card-bg: #1e293b;
  --border-color: #334155;
  --shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
  --tag-bg: #1e3a8a;
  --tag-color: #93c5fd;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Foco visible para accesibilidad */
:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Clase para elementos visualmente ocultos pero accesibles */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  min-height: 100vh;
  background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.1), transparent 30rem), var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-family);
  line-height: 1.55;
  transition: background-color 0.3s, color 0.3s;
}

.container {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.home-page {
  padding-top: 3rem;
}

.home-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  align-items: center;
  gap: 2rem;
  min-height: 360px;
  padding: 3rem;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  background: linear-gradient(135deg, var(--card-bg), rgba(23, 105, 224, 0.12));
  box-shadow: var(--shadow);
}

.eyebrow {
  display: block;
  margin-bottom: 0.7rem;
  color: var(--primary-color);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.home-hero h2,
.section-heading h2,
.home-info-band h2 {
  max-width: 700px;
  color: var(--text-color);
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 1.05;
}

.home-hero p {
  max-width: 650px;
  margin-top: 1.25rem;
  color: var(--muted-color);
  font-size: 1.08rem;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.8rem;
}

.primary-action,
.secondary-action,
.feature-item a {
  display: inline-block;
  text-decoration: none;
  font-weight: 800;
}

.primary-action,
.secondary-action {
  padding: 0.78rem 1rem;
  border-radius: 8px;
}

.primary-action {
  background: var(--primary-color);
  color: #fff;
}

.secondary-action {
  border: 1px solid var(--border-color);
  color: var(--text-color);
}

.home-hero-mark {
  display: grid;
  place-items: center;
  width: 180px;
  height: 180px;
  border: 1px solid rgba(23, 105, 224, 0.3);
  border-radius: 50%;
  background: rgba(23, 105, 224, 0.12);
  color: var(--primary-color);
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.home-section {
  padding: 5rem 0 1rem;
}

.section-heading {
  max-width: 760px;
}

.section-heading h2 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.section-intro {
  max-width: 700px;
  margin-top: 1rem;
  color: var(--muted-color);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.feature-item {
  display: flex;
  flex-direction: column;
  min-height: 230px;
  padding: 1.35rem;
  border-top: 2px solid var(--primary-color);
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

.feature-number {
  color: var(--accent-color);
  font-size: 0.8rem;
  font-weight: 900;
}

.feature-item h3 {
  margin-top: 2rem;
  color: var(--text-color);
}

.feature-item p {
  margin: 0.6rem 0 1.2rem;
  color: var(--muted-color);
  font-size: 0.92rem;
}

.feature-item a {
  margin-top: auto;
  color: var(--primary-color);
  font-size: 0.88rem;
}

.home-info-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.8fr);
  gap: 2rem;
  margin: 5rem 0 1rem;
  padding: 2rem 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.home-info-band h2 {
  font-size: clamp(1.6rem, 3vw, 2.5rem);
}

.home-info-band p {
  color: var(--muted-color);
}

.main-header {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 1.15rem max(1rem, calc((100% - 1180px) / 2));
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  box-shadow: 0 4px 18px rgba(23, 32, 51, 0.04);
}

.logo {
  margin-right: auto;
}

.logo-text {
  color: var(--text-color);
  font-size: clamp(1.25rem, 2vw, 1.6rem);
  font-weight: 700;
  letter-spacing: -0.04em;
}

.logo-text span {
  color: var(--primary-color);
}

.main-nav ul {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 0.35rem;
}

.main-nav a {
  display: block;
  padding: 0.5rem 0.8rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--muted-color);
  font-size: 0.92rem;
  font-weight: 650;
  transition: color 0.2s, background-color 0.2s;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--primary-color);
  background: rgba(23, 105, 224, 0.1);
}

.main-nav li.auth-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.main-nav .nav-auth {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: transparent;
  color: var(--muted-color);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s, background-color 0.2s, border-color 0.2s;
}

.main-nav .nav-auth:hover,
.main-nav .nav-auth.active {
  color: var(--primary-color);
  background: rgba(23, 105, 224, 0.1);
  border-color: var(--primary-color);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-color);
}

.btn-theme,
.filter-btn {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text-color);
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s, background-color 0.2s;
}

.btn-theme {
  width: 2.4rem;
  height: 2.4rem;
  font-size: 1rem;
}

.btn-theme:hover,
.filter-btn:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
}

.main-layout {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(230px, 1fr);
  gap: 2rem;
  padding-top: 3rem;
}

.filter-section {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.2rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

#searchForm {
  display: flex;
  flex: 1 1 460px;
  min-width: min(100%, 280px);
  gap: 0.55rem;
}

.privacy-note {
  flex-basis: 100%;
  color: var(--muted-color);
  font-size: 0.75rem;
}

#searchInput {
  min-width: 0;
  flex: 1;
  padding: 0.78rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  outline: none;
  background: var(--card-bg);
  color: var(--text-color);
  font: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
}

#searchInput:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(23, 105, 224, 0.14);
}

#searchInput::placeholder {
  color: var(--muted-color);
}

.search-submit {
  padding: 0.78rem 1rem;
  border: 1px solid var(--primary-color);
  border-radius: 8px;
  background: var(--primary-color);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.search-submit:hover {
  background: var(--primary-dark);
}

.category-filters {
  display: flex;
  flex: 0 1 auto;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.filter-btn {
  padding: 0.62rem 0.85rem;
  color: var(--muted-color);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
}

.filter-btn.active {
  border-color: var(--primary-color);
  background: var(--primary-color);
  color: #fff;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 1.5rem;
}

.cards-grid-content {
  display: contents;
}

.google-results {
  grid-column: 1 / -1;
  padding: 2rem;
  border: 1px dashed var(--border-color);
  border-radius: 12px;
  color: var(--muted-color);
  text-align: center;
}

.loading-state,
.empty-state,
.error-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 3rem 2rem;
  border-radius: 12px;
  text-align: center;
}

.loading-state {
  color: var(--muted-color);
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.empty-state {
  color: var(--muted-color);
}

.empty-icon,
.error-icon {
  font-size: 3rem;
}

.error-state {
  color: var(--muted-color);
  border: 1px dashed #ef4444;
  background: rgba(239, 68, 68, 0.05);
}

.retry-button {
  margin-top: 1rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--primary-color);
  border-radius: 8px;
  background: var(--primary-color);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.retry-button:hover {
  background: var(--primary-dark);
}

.last-updated {
  grid-column: 1 / -1;
  margin-top: 1rem;
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  color: var(--muted-color);
  text-align: center;
  border-radius: 6px;
  background: rgba(59, 130, 246, 0.05);
}

.news-date {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  color: var(--muted-color);
}

.card:not(.has-image) {
  grid-column: span 1;
}

@media (min-width: 768px) {
  .card:not(.has-image) {
    grid-column: span 1;
  }
}

.card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--border-color);
  background: #dce8f8;
}

.card-body {
  display: flex;
  flex-grow: 1;
  flex-direction: column;
  padding: 1.5rem;
}

.card-description {
  display: -webkit-box;
  overflow: hidden;
  color: var(--muted-color);
  font-size: 0.92rem;
  line-height: 1.5;
  margin-bottom: 1.2rem;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
}

.card-body a {
  word-break: break-word;
}

.tag {
  display: inline-block;
  align-self: flex-start;
  margin-bottom: 0.8rem;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  background: var(--tag-bg);
  color: var(--tag-color);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.card h3,
.widget h3 {
  margin-bottom: 0.55rem;
  color: var(--text-color);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.4;
}

.card p,
.widget p {
  color: var(--muted-color);
  font-size: 0.93rem;
}

.read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.1rem;
  color: var(--primary-color);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s ease;
}

.card-body .read-more {
  margin-top: auto;
  padding-top: 1rem;
}

.read-more:hover {
  color: var(--primary-dark);
}

.sidebar {
  display: grid;
  align-content: start;
  gap: 1rem;
}

.newsletter-form {
  display: grid;
  gap: 0.7rem;
}

.newsletter-form label {
  color: var(--text-color);
  font-size: 0.85rem;
  font-weight: 700;
}

.newsletter-form input {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text-color);
  font: inherit;
}

.newsletter-form input:focus {
  border-color: var(--primary-color);
  outline: 3px solid rgba(23, 105, 224, 0.14);
}

.newsletter-form button {
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--primary-color);
  border-radius: 8px;
  background: var(--primary-color);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
}

.newsletter-form button:hover {
  background: var(--primary-dark);
}

.newsletter-status {
  min-height: 1.35rem;
  color: var(--muted-color);
  font-size: 0.78rem;
}

.newsletter-status.is-visible {
  color: var(--primary-dark);
}

.widget {
  padding: 1.25rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

.widget ul {
  display: grid;
  gap: 0.7rem;
  padding-left: 1.1rem;
}

.widget a {
  color: var(--primary-color);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 650;
}

.widget a:hover {
  text-decoration: underline;
}

.contact-section {
  display: grid;
  gap: 1.25rem;
  max-width: 720px;
  padding: 1.5rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

.contact-section h2 {
  color: var(--text-color);
}

.contact-section p {
  color: var(--muted-color);
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form label {
  display: grid;
  gap: 0.35rem;
  color: var(--text-color);
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.78rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--card-bg);
  color: var(--text-color);
  font: inherit;
}

.contact-form textarea {
  min-height: 9rem;
  resize: vertical;
}

.main-footer {
  text-align: center;
  padding: 2.5rem 1rem;
  margin-top: 4rem;
  border-top: 1px solid var(--border-color);
  background-color: var(--card-bg);
  color: var(--muted-color);
  font-size: 0.85rem;
}

.main-footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem 1.2rem;
  margin-top: 0.75rem;
}

.main-footer a {
  color: var(--primary-color);
  text-decoration: none;
}

.main-footer a:hover {
  text-decoration: underline;
}

.legal-page {
  max-width: 820px;
  padding-top: 3rem;
}

.legal-content {
  display: grid;
  gap: 1.5rem;
  padding: 2rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
}

.legal-content h2,
.legal-content h3 {
  color: var(--text-color);
}

.legal-content h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.legal-content h3 {
  margin-top: 0.5rem;
}

.legal-content p,
.legal-content li {
  color: var(--muted-color);
}

.legal-content ul {
  display: grid;
  gap: 0.55rem;
  padding-left: 1.25rem;
}

.legal-content a {
  color: var(--primary-color);
  font-weight: 700;
}

.cookie-notice {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  width: min(680px, calc(100% - 2rem));
  padding: 1rem 1.2rem;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  background: var(--card-bg);
  box-shadow: 0 18px 45px rgba(23, 32, 51, 0.2);
}

.cookie-notice h2 {
  color: var(--text-color);
  font-size: 1rem;
}

.cookie-notice p {
  margin-top: 0.3rem;
  color: var(--muted-color);
  font-size: 0.85rem;
}

.cookie-notice-actions {
  display: flex;
  flex-shrink: 0;
  gap: 0.5rem;
}

.cookie-notice button {
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--primary-color);
  border-radius: 8px;
  background: var(--primary-color);
  color: #fff;
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
}

.cookie-notice .cookie-reject {
  border-color: var(--border-color);
  background: transparent;
  color: var(--text-color);
}

.cookie-notice .cookie-reject:hover {
  border-color: var(--border-color);
  background: rgba(0, 0, 0, 0.05);
}

@media (max-width: 800px) {
  .main-header {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .nav-toggle {
    display: block;
    order: 2;
  }

  .btn-theme {
    order: 3;
  }

  .main-nav {
    display: none;
    flex-basis: 100%;
    order: 4;
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    padding-top: 0.5rem;
  }

  .main-nav a {
    text-align: center;
  }

  .main-nav li.auth-nav {
    flex-direction: column;
    align-items: stretch;
  }

  .main-nav .nav-auth {
    width: 100%;
  }

  .main-layout {
    grid-template-columns: 1fr;
    padding-top: 2rem;
  }

  .home-hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 2rem;
  }

  .home-hero-mark {
    width: 120px;
    height: 120px;
    font-size: 2rem;
  }

  .feature-grid,
  .home-info-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .home-page {
    padding-top: 1.5rem;
  }

  .home-hero {
    padding: 1.5rem;
  }

  .home-hero h2 {
    font-size: 2.2rem;
  }

  .filter-section {
    align-items: stretch;
    flex-direction: column;
  }

  #searchInput {
    width: 100%;
  }

  #searchForm {
    width: 100%;
  }

  .category-filters {
    justify-content: stretch;
  }

  .filter-btn {
    flex: 1;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  .card {
    min-height: auto;
  }

  .card img {
    height: 180px;
  }

  .loading-state,
  .empty-state,
  .error-state {
    padding: 2rem 1rem;
  }

  .cookie-notice {
    align-items: stretch;
    flex-direction: column;
    gap: 0.8rem;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    max-height: 50vh;
    overflow-y: auto;
  }

  .cookie-notice-actions {
    justify-content: stretch;
  }

  .cookie-notice button {
    flex: 1;
  }
}